replaced deprecated f'romstring' by 'frombuffer', this fixes issue #64

Author: SKolodynski

CHANGELOG.txt

@@ -7,6 +7,8 @@
     because of 'async' becoming a keyword in Python 3.7
   - replaced DataFrame.as_matrix() method (deprecated since Pandas 0.23.0) by 
     DataFrame.values
+  - replaced numpy.fromstring method (deprecated since NumPy 1.14) by 
+    numpy.frombuffer
 
 ------------------------------------------------------------------------------
   qPython 1.3.0 [2017.03.xx]

doc/source/conf.py

@@ -29,7 +29,7 @@ def __getattr__(cls, name):
 
 # workaround for building docs without numpy
 import numpy
-numpy.fromstring = lambda x, dtype: [None]
+numpy.frombuffer = lambda x, dtype: [None]
 numpy.ndarray = Mock
 # end-of-workaround
 

doc/source/type-conversion.rst

@@ -370,8 +370,8 @@ Please note that q ``null`` values are defined as::
     _QNULL2 = numpy.int16(-2**15)
     _QNULL4 = numpy.int32(-2**31)
     _QNULL8 = numpy.int64(-2**63)
-    _QNAN32 = numpy.fromstring('\x00\x00\xc0\x7f', dtype=numpy.float32)[0]
-    _QNAN64 = numpy.fromstring('\x00\x00\x00\x00\x00\x00\xf8\x7f', dtype=numpy.float64)[0]
+    _QNAN32 = numpy.frombuffer('\x00\x00\xc0\x7f', dtype=numpy.float32)[0]
+    _QNAN64 = numpy.frombuffer('\x00\x00\x00\x00\x00\x00\xf8\x7f', dtype=numpy.float64)[0]
     _QNULL_BOOL = numpy.bool_(False)
     _QNULL_SYM = numpy.string_('')
     _QNULL_GUID = uuid.UUID('00000000-0000-0000-0000-000000000000')

qpython/qreader.py

@@ -200,7 +200,7 @@ def read_data(self, message_size, is_compressed = False, **options):
             uncompressed_size = -8 + self._buffer.get_int()
             compressed_data = self._read_bytes(message_size - 12) if self._stream else self._buffer.raw(message_size - 12)
 
-            raw_data = numpy.fromstring(compressed_data, dtype = numpy.uint8)
+            raw_data = numpy.frombuffer(compressed_data, dtype = numpy.uint8)
             if  uncompressed_size <= 0:
                 raise QReaderException('Error while data decompression.')
 
@@ -296,7 +296,7 @@ def _read_list(self, qtype):
             return qlist(data, qtype = qtype, adjust_dtype = False)
         elif conversion:
             raw = self._buffer.raw(length * ATOM_SIZE[qtype])
-            data = numpy.fromstring(raw, dtype = conversion)
+            data = numpy.frombuffer(raw, dtype = conversion)
             if not self._is_native:
                 data.byteswap(True)
 

qpython/qtype.py

@@ -259,8 +259,8 @@
 _QNULL2 = numpy.int16(-2**15)
 _QNULL4 = numpy.int32(-2**31)
 _QNULL8 = numpy.int64(-2**63)
-_QNAN32 = numpy.fromstring(b'\x00\x00\xc0\x7f', dtype=numpy.float32)[0]
-_QNAN64 = numpy.fromstring(b'\x00\x00\x00\x00\x00\x00\xf8\x7f', dtype=numpy.float64)[0]
+_QNAN32 = numpy.frombuffer(b'\x00\x00\xc0\x7f', dtype=numpy.float32)[0]
+_QNAN64 = numpy.frombuffer(b'\x00\x00\x00\x00\x00\x00\xf8\x7f', dtype=numpy.float64)[0]
 _QNULL_BOOL = numpy.bool_(False)
 _QNULL_SYM = numpy.string_('')
 _QNULL_GUID = uuid.UUID('00000000-0000-0000-0000-000000000000')